Jones middle school has 850 students and gets 5 new students per month. roberts middle school has 985 students and 10 students withdrawal each month. after how many months will jones middle school have students than roberts middle school

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units